객관식
What is the curved surface of a liquid in a graduated cylinder called?
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1. Intro to General Chemistry
Density
객관식
A sample has a mass of 25 g and a volume of 2.8 mL. What is the density of this sample?
A
22.2 g/mL
B
0.11 g/mL
C
7.1 g/mL
D
8.9 g/mL
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검증된 단계별 안내1
Recall the formula for density, which is defined as mass divided by volume: \(\text{Density} = \frac{\text{Mass}}{\text{Volume}}\).
Identify the given values from the problem: mass = 25 g and volume = 2.8 mL.
Substitute the given values into the density formula: \(\text{Density} = \frac{25\ \text{g}}{2.8\ \text{mL}}\).
Perform the division to find the density value (do not calculate the final number here, just set up the expression).
Express the density with the correct units, which will be grams per milliliter (g/mL).
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